Driving-wheel lathe.



No. 866,885. PATENTED SEPT. 24, 1907. G. T. RBISS 6: A. WOOD. DRIVING WHEEL LATHE.

APPLICATION FILED [AI 24. 1907.

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b I% m m\ Iriventors w v w E m M u Q w m Attorney No. 866,885. PATENTED SEPT. 24, 1907. e. T. REISS & A. woon.

DRIVING WHEEL LATHE. urmornox FILED In 24. 1907.

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UNITED STATES PATENT OFFICE.

GEORGE T. REISS AND AUGUSTUS WOOD, OF HAMILTON, OHIO, ASSIG'NORS TO NILES-BEMENT- POND COMPANY, OF JERSEY CITY, NEW JERSEY.

DRIVING-WHEEL LATHE Specification of Letters Patent.

Patented Sept. 24, 1907.

Application filed May 24;, 1907. Serial No. 375.413.

To all whom it may concern:

Be it known that we, GEORGE T. Rnrss and AUGUS- TUS Woon, citizens of the United States, residing at Hamilton, Butler county, Ohio, have invented certain new and useful Improvements in Driving-Wheek Lathes, of which the following is a specification.

This invention will be readily understood from the following description taken in connection with the accompanying drawings in which:

Figure 1 is a vertical diametrical section of a portion of a driving-wheel lathe embodying Our invention: Fig. 2 a face view of the same: Fig. 3 a horizontal section in the plane of line a of Figs. 1 and 2: Fig. 4 a plan of the driver: and Figs. 5, 6, 7 and 8, views illustrating the character of driving wheels our lathes are peculiarly designed to deal with.

Locomotive driving wheels of the ordinary American type present no difficulties in having their tires returned while the wheels are on their axles, the usual driving-wheel lathes having holes or recesses in their face-plates to allow for the projection of the crank pins which are firmly secured in the wheels. But in locomotive driving wheels provided with return cranks, such as are very common in European countries, it becomes necessary, in employing ordinary driving wheel lathes, to remove the return cranks and, in many cases, the crank pins, the removal of the latter being necessary when the crank pin and return crank are formed in one piece, as is sometimes the case. The removal of a well fitted crank pin from a driving-wheel is very undesirable, and our improved driving-wheel lathe is designed to deal with driving-wheels with return cranks without necessitating the removal of return cranks or crank pins.

In the drawings, referring particularly to Figs. 5 and G which illustrate one common European type of driving-wheel:1, indicates the wheel: 2, the crank-pin: 3, the return crank thereon: and 4, the wrist of the return crank. This wrist is concentric with the axis of the wheel and receives eccentrics for the actuation of the valve-gear. It is the presence of this return crank which prevents the use of ordinary drivingwheel lathes without the necessity for removing the return crank and, in case the return crank is integral with the crank pin, removing the crank pin from the wheel.

Referring further to the drawings, and now particularly to Figs. 7 and 8:5, indicates a return crank which, instead of being radial to the wheel, is thrown considerably to one side: and 6, the wrist carried by the return crank. In this case the wrist of the return crank, instead of being concentric with the wheel and arranged to carry eccentrics to actuate the valve gear, is itself eccentric. It is shown asbeing disposed eccentrically to one side of the axis of the wheel but in another wheel would be disposed at the other side of the axis. The ordinary American type of driving-wheel would be represented by any of the above mentioned figures if the return crank be assumed as absent.

Proceeding with the drawings, and giving considera tion to Figs. 1 to 4 inclusive :'7, indicates the arbor of an ordinary driving-wheel lathe: 8, the face-plate thereon: 9, a hole or recess in the face-plate adapted to admit the crank-pin of the ordinary Americantype of driving-wheel: 10, the usual center-spindle sliding axially in the arbor: 11, the lathe center carried by the center spindle: 12, one of the drivers bolted to the face-plate, it being understood that a plurality of these drivers are employed on each face-plate: 13, the driving-block carried by the driver: 14, the screw for adj usting the driving block against the tire of the wheel: 15, a large recess in the face of the faceplate, of a form and dimension adapted to permit of the presence of a return crank, such as are illustrated in Figs. 6 and 8: 16, a radial guide-way in the face-plate: 17, a plate sliding in this guide-way: 18, a screw for moving the plate radially: 19, a movable bushing fitted in a bore in the inner end of the sliding plate with its axis parallel with that of the face-plate, the diameter of the bore in which this bushing fits being such as to accurately fit the center spindle 10: 21, a secondary lathe center disposed axially in the bushing 19 and screwed therein so as to be axially adjustable: and 22 the inner end of the sliding plate when the plateois adjusted inwardly to such position that the borein o s 11 m carried by the face-plate in position to be engage qlfby its inner end will be concentric with the axis of the face-plate.

If wheels of the type illustrated in Figs. 5 and 6 are to be worked upon the procedure is as follows:-The sliding plate will be adjusted outwardly in the faceplate so as to leave the central recess entirely clear. The wheel and axle structure is then to be placed in the lathe, the return crank 3 being received freely in the central recess, and the wrist 4 extending back into the axial bore of the arbor. The sliding plate is then to be adjusted inwardly against the stops, after which the secondary center 20 is to be adjusted outwardly to properly engage the center in the end of the axle and then be secured by the set-screw 21. It will of course be understood that while the description has been applied to but a single face-plate, it will similarly apply to the opposite face-plate of a double-headed lathe. The wheel and axle structure having thus been mounted on centers in the lathe, the driving-blocks 1.3 will be adjusted into driving engagement with the outer faces of the tires, and the work of the lathe can then be proceeded with in the usual manner.

If work is to be done upon wheels of the type illustrated in Figs. 7 and 8 then the procedure will be as has been described, except that the wrist 6, instead of extending into the axial bore of the face-plate, will extend into one of the recesses 23 representing deepening of the main recess 15 in case the latter be not entirely made deep enough to permit of the presence of the wrist.

If work is to be done upon wheels of ordinary American type, having no return cranks, the procedure will be somewhat different. The plate is to remain in its inward position against its stop, and the bushing and secondary center is to be removed. Center-spindle 10 is then to be advanced to take position in the bore of the plate previously occupied by the bushing, and the wheel and axle structure is then to be put in the lathe and dealt with in the manner usual in ordinary driving-wheel lathes. ,American type the bushing and secondary center might be permitted to remain in the plate and the plate might be moved outwardly so as to permit the spindle center to be advanced free of interference. But this would bring about a considerable unsupported projection of the center spindle, something entirely avoided when the plate is utilized as a bearing for the center spindle.

It is to be observed that the sliding center spindle and its center comes into action only when the lathe is to deal with wheels of American type, or with wheels of European type with their return cranks removed. In case provision is to be made only for dealing with wheels of the European type with their return cranks present then, if desired, the sliding center spindle might be omitted.

It will of course be understood that the invention, as illustrated, is subject to numerous modifications in detail without departure from its general principle.

We claim:

1. A face-plate provided with a central recess adapted for the reception of the return crank of a locomotive driving-wheel, a movable plate carried by the face-plate at the front of the recess and arranged for displacement so as to leave the front of the recess clear, a center carried by said movable plate at the axis of the face-plate, and means whereby said center may be adjusted in the axial line of the face-plate, combined substantially as set forth.

2. A faceplate provided with a central recess adapted for the reception of the return crank of a locomotive driving-wheel, a movable plate carried by the faceplate at the front of the recess and arranged for displacement so as to leave the front of the recess clear. means whereby said movable plate may be adjusted to and from the axis of the face-plate, a center carried by said movable plate at the axis of the face-plate, and means whereby said center In thus working with wheels of the may be adjusted in the axial line of the face-plate, combined substantially as set forth.

A face-plate provided with a central recess adapted for the reception of the return crank of a locomotive drivingaviieel, a radial guide-way in the front of the faceplate, a movable plate slidable in said guideavay, means for adjusting the movable plate to and from the axis of the face-plate, a center carried by said movable plate at tile axis of the face-plate, and means whereby said center may be adjusted in the axial line of the faceplate, combined substantially as set forth.

4. A lathe arbor having an axial bore, a face-plate thereon provided with a central recess adapted for the re ccption of the return crank of a locomotive driving-wheel. a center-spindle slidable in the axial bore of the arbor, a movable plate carried by the face-plate at the front of the recess and arranged for displacement so as to leave the front of the recess clear ,and having a bore concentric with the axis of the faceplate and of a diameter to fit the center spindle, a center carried by said movable plate at the axis of the face-plate, and means whereby said center may be adjusted in the axial line of the face-plate, combined sub stantially as set forth.

A face-plate provided with a central recess adapted for the reception of the return crank of a locomotive driving-wheel. a movable plate carried by the face-plate at the front of the recess and arranged for displacement so as to leave the front of the recess clear, means for adjusting said movable plate to and from the axis of the faceplate. a center carried by said movable plate at the axis of the faceplate, a stop carried by the face-plate to limit the inward movement of said movable plate, and means whereby said center may be adjusted in the axial line of the faceplate, combined substantially as set forth.

6. lathe arbor having an axial bore, a face-plate thereon provided with a central recess adapted for the reccption of the return crank of a locomotive drivingavheel. a center-spindle siidabie in the axial bore of the arbor. a movable plate carried by the face-plate at the front of the recess and arranged for displacement so as to leave the front of. the recess clear and having a bore concentric with the axis of the face-plate and of a diameter to fit the center spindle. a removable bushing seated in said bore, a center screwed concentrically into said bushing and axially adjustable therein, and means for binding thecenter in the bushing after adjustment, combined substantially as set forth.

7. A face-plate provided with a central recess adapted for the reception of the return crank of a locomotive driving wheel, a plate projecting partly across said recess and adapted for position between the driving wheel and its return crank, a center carried by said plate in the axial line of the faceplate, and means whereby said center may be adjusted axially relative to a wheel supported thereby. combined substantially as set forth.

GEORGE T. REISS. AUGUSTUS WOOD.

Witnesses R. B. MILLIKIN, M. S. BnLnnN. 

